Remove svn:mergeinfo carried over from stable/9.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r227101:
Add static keywords to variables and functions where possible in games/.

This allows us to detect unused functions and variables and allows the
compiler to do a better job at optimisation.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

grdc(6): de-obfuscate the timekeeping of now/delay

- 'now' only contains current time readings
- delay is only used as parameter to nanosleep
- prev_sec contains the time_t of the previous loop iteration

Submitted by: bde
MFC after: 2 weeks

grdc(6): Partial backout of r210755

The previous revision was flawed in numerous ways:
- the if condition would depend on garbage stack values
- grdc(6) would loop n times, not n seconds. This only makes
a difference if it takes more than 1 second to recalculate/redraw
the display.
- style(9) violations

The following change adds argument checking and tracks the elapsed time
between loops explicitly and will exit after roughly n seconds.

While here sort headers and remove bogus #ifndef

Submitted by: bde
MFC after: 2 weeks

grdc(6): fix timekeeping for user-supplied value n

- Keep timespec 'now' and 'delay' separate to avoid confusion
- Increase user-supplied n to run _at least_ n seconds, not max n

PR: bin/149130 (based on)
Submitted by: Andy Farkas
MFC after: 2 weeks

games: make WARNS=6 the default, remove overrides

This also bumps factor, fortune, primes, and random to WARNS=6.

Approved by: ed (Co-mentor)

grdc(6) make WARNS=6 clean and bump accordingly

Approved by: ed (Co-mentor)

Improve time precision for grdc(6):

Traditionally, grdc would obtain time through time(3) which in turn gets
only the second part of clock (CLOCK_SECOND), and sleep for 1 second after
each screen refresh.

This approach would have two problems. First, we are not guaranteed to
be waken up at the beginning of a whole second, which will typically
exhibit as a "lag" on second number. Second, because we sleep for whole
second, and the refresh process would take some time, the error would
accumulate from time to time, making the lag variable.

Make grdc(6) to use time(3) to get time only at the beginning, and sample
time in CLOCK_REALTIME_FAST granularity after refreshing, and use the
nanosecond part to caculate how much time we want to sleep.

PR: bin/120813
MFC after: 1 month

Handle 12-hour clocks properly: when the time is 00:00-00:59, adjust the
hour to 12 so the time reads "12:00-12:59 AM".

mdoc(7) police: Make SYNOPSIS match usage().

Approved by: re (blanket)

Add an option to print the time in 12-hour format.

Submitted by: Samy Al Bahra <samy@kerneled.com>

mdoc(7) police: Added the missing .Os call; it's not strictly
necessary nowadays, but is documented as "required", and may
become so again in the future.

Approved by: re

- Only use sig_atomic_t objects in signal handlers.
- Use getopt() to parse command line.
- Add usage().
- WARNSify.
- Convert manpage to mdoc(7).

PR: bin/30641
Submitted by: Andrey Simonenko <simon@simon.org.ua>, ru
MFC after: 1 week

- Backout botched attempt to intoduce MANSECT feature.
- MAN[1-9] -> MAN.

Set the default manual section for games/ to 6.

Remove unneded -ltermcap or -lmytinfo

-Wall fixes.

Add curs_set(0) to get rid of that annoying cursor. I also have to evilly
add $FreeBSD$ so I can commit this.

$Id$ -> $FreeBSD$

Change long variable to time_t where it is passed to time() by reference.

Remove so-called revoke, this game not installed sguid

Change games from setuid games to setgid games.

Reviewed by: maybe@yes.no
Obtained from: OpenBSD (mostly deraadt@openbsd.org)

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Remove trailing whitespace.

gdc -> grdc

This commit was generated by cvs2svn to compensate for changes in r4974,
which included commits to RCS files with non-trunk default branches.